The decades-old medical advice that an aspirin a day keeps a heart attack away is outdated. Yet about half of U.S. adults (48%) are unaware that the consensus has changed for healthy older people not at increased risk of heart disease, per a survey conducted by the Annenberg Public Policy Center at the University of Pennsylvania, a misconception that could be putting them in danger. Hover over the chart below to explore the responses of people who don’t have a personal or family history of stroke or heart attack.